Anatomy of a WurliTzer Theatre Pipe Organ
Preset Relay Action
Pressing a Piston Button, below the Manuals, activates the relevant magnet which exhausts the (Red) Primary
Pneumatic, above, which lifts the valves which allows air into the (white) Secondary Pneumatic, above, via
channels in the back and top boards which blows the pneumatic openpressing the contact bar down onto the
contact wires, not fitted at this time.
As there are 3 pistons on each manual there is a total of 6 actions.
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